Pushrod measurements 440
This is taken from my build page
Slow build 71 Scamp 440
I didn’t get any hits there so a new thread it is.
Pushrod measurement.
I’m not quite sure how to accomplish this but took a rookie stab at it after watching numerous videos.
I used the comp cam measurement tool.
With the tool installed I bolted down the rockers. Not torqued. I then made sure that lifter was bottomed out. I then spun the tool up to ball of lifter and had the cup secured to the ball with minimal thread exposed. I then rotated the engine to see how it looked. These lifters weren’t soaked so when I rotated the engine the pushrod tool did sink into the lifter. I brought the lifter to zero lift and took the measurement. The pushrod at zero lift was not diving into the lifter.
Zero wall clearance issues
Measurement 9” 1/8
Once I feel confident that this is the ballpark of what I need I’ll order from Smith Brothers.
Two measurements taken
First with 1.5 threads exposed
Second with 2 exposed 9” 1/8
I’ll do it again and use a proper measuring tool.
Smith Brothers says I’m on the right path.
Thoughts?
Links to equipment
Mancini 1.5 rockers
Mancini Racing Aluminum Roller Rocker Arm Kit
Sidewinder heads with comp hardware
mopartsracing - Sidewinder Cylinder Heads For Big Block Mopar
Comp Cams
Photo added
Howard’s lifters “from Summit Racing”Howards Cams 91712 Howards Cams Max Effort Hydraulic Lifters | Summit Racing
Brandon
Follow the build here …..Slow build 71 Scamp 440
This is taken from my build page
Slow build 71 Scamp 440
I didn’t get any hits there so a new thread it is.
Pushrod measurement.
I’m not quite sure how to accomplish this but took a rookie stab at it after watching numerous videos.
I used the comp cam measurement tool.
With the tool installed I bolted down the rockers. Not torqued. I then made sure that lifter was bottomed out. I then spun the tool up to ball of lifter and had the cup secured to the ball with minimal thread exposed. I then rotated the engine to see how it looked. These lifters weren’t soaked so when I rotated the engine the pushrod tool did sink into the lifter. I brought the lifter to zero lift and took the measurement. The pushrod at zero lift was not diving into the lifter.
Zero wall clearance issues
Measurement 9” 1/8
Once I feel confident that this is the ballpark of what I need I’ll order from Smith Brothers.
Two measurements taken
First with 1.5 threads exposed
Second with 2 exposed 9” 1/8
I’ll do it again and use a proper measuring tool.
Smith Brothers says I’m on the right path.
Thoughts?
Links to equipment
Mancini 1.5 rockers
Mancini Racing Aluminum Roller Rocker Arm Kit
Sidewinder heads with comp hardware
mopartsracing - Sidewinder Cylinder Heads For Big Block Mopar
Comp Cams
Photo added
Howard’s lifters “from Summit Racing”Howards Cams 91712 Howards Cams Max Effort Hydraulic Lifters | Summit Racing
Brandon
Follow the build here …..Slow build 71 Scamp 440